C66900 Brass vs. Grade 21 Titanium
C66900 brass belongs to the copper alloys classification, while grade 21 titanium belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is C66900 brass and the bottom bar is grade 21 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 140 |
| Elongation at Break, % | 1.1 to 26 | |
| 9.0 to 17 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Shear Modulus, GPa | 45 | |
| 51 |
| Shear Strength, MPa | 290 to 440 | |
| 550 to 790 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 770 | |
| 890 to 1340 |
| Tensile Strength: Yield (Proof), MPa | 330 to 760 | |
| 870 to 1170 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 150 | |
| 310 |
| Melting Completion (Liquidus), °C | 860 | |
| 1740 |
| Melting Onset (Solidus), °C | 850 | |
| 1690 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 500 |
| Thermal Expansion, µm/m-K | 20 | |
| 7.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 60 |
| Density, g/cm3 | 8.2 | |
| 5.4 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 32 |
| Embodied Energy, MJ/kg | 46 | |
| 490 |
| Embodied Water, L/kg | 310 | |
| 180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 4.6 to 200 | |
| 110 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 460 to 2450 | |
| 2760 to 5010 |
| Stiffness to Weight: Axial, points | 8.1 | |
| 14 |
| Stiffness to Weight: Bending, points | 20 | |
| 32 |
| Strength to Weight: Axial, points | 15 to 26 | |
| 46 to 69 |
| Strength to Weight: Bending, points | 16 to 23 | |
| 38 to 50 |
| Thermal Shock Resistance, points | 14 to 23 | |
| 66 to 100 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 2.5 to 3.5 |
| Carbon (C), % | 0 | |
| 0 to 0.050 |
| Copper (Cu), % | 62.5 to 64.5 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 0 to 0.25 | |
| 0 to 0.4 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 |
| Manganese (Mn), % | 11.5 to 12.5 | |
| 0 |
| Molybdenum (Mo), % | 0 | |
| 14 to 16 |
| Niobium (Nb), % | 0 | |
| 2.2 to 3.2 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.17 |
| Silicon (Si), % | 0 | |
| 0.15 to 0.25 |
| Titanium (Ti), % | 0 | |
| 76 to 81.2 |
| Zinc (Zn), % | 22.5 to 26 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.4 |